To improve density and bondability of Ag-WC-based alloy to which a sintering additive is added.
There is provided a contact material for a vacuum valve used in a vacuum valve including a pair of points of contact 1 which can be contacted with and be separated from each other. The contacts 1 are connected to a first Ag-WC-based alloy layer 2 which becomes a contact surface and a first Ag-WC-based alloy layer 2, and is formed of a second Ag-WC-based alloy layer 3 adhered to an electrode 4. A sintering additive is added to each of the first Ag-WC-based alloy layer 2 and the second Ag-WC-based alloy layer 3, and an amount of the sintering additive added to the first Ag-WC-based alloy layer 2 is greater than that of the second Ag-WC-based alloy layer 3.
YAMAMOTO ATSUSHI
SASAKI HARUKA
SOMEI HIROMICHI
SEKIMORI HIROKI
| JPS536710B2 | 1978-03-10 | |||
| JPH11126531A | 1999-05-11 | |||
| JPS5810322A | 1983-01-20 |
Fujiwara Yasutaka
Hajime Yamashita